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首页> 外文期刊>International journal of computational methods >Torsional Waves in a Fiber Composite Medium at a Loosely Bonded Interface Constrained Between Dry Sandy Layer and Gravitating Poroelastic Substrate
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Torsional Waves in a Fiber Composite Medium at a Loosely Bonded Interface Constrained Between Dry Sandy Layer and Gravitating Poroelastic Substrate

机译：在纤维复合介质中的扭转波在松散的粘合界面处受到干燥的砂质层和胎化孔弹性基材之间的限制

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The objective of this paper is to study the effect of loosely bonded interface on torsional surface wave propagation in a fiber reinforced composite medium constrained between dry sandy layer and an anisotropic gravitating poroelastic substrate. All the media are assumed to be under initial stress. The dispersion relation on this proposed multilayer ground structure has been derived in closed form under certain boundary conditions, which contain Whittaker function and its derivative, which is further expanded asymptotically, retaining up to only the linear terms. The numerical solution for the limiting case of torsional surface waves is also discussed. As a special case of the problem, when the entire medium is isotropic and one of the upper layer vanishes and removing the initial stress and gravity, the dispersion relation obtained is in agreement with the classical Love type wave equation. The influence of various technical constants, such as sandy parameter, reinforcement parameter, porosity parameter, Biot’s gravity parameter, loosely bonded parameters, initial stress of both the layers and half spaces on the phase velocity of torsional surface wave has been pointed out by means of graphs.
机译：本文的目的是研究松散的粘合界面对在干式砂质层和各向异性胎胞弹性基材之间受约束的纤维增强复合介质中的扭转表面波传播的影响。所有媒体都被认为是在初始压力​​下。在该所提出的多层地面结构上的分散关系已经在含有灯箱功能及其衍生物的某些边界条件下衍生以封闭形式，其进一步扩展渐近的，仅保持线性术语。还讨论了用于扭转表面波的限制情况的数值解决方案。作为问题的特殊情况，当整个介质是各向同性并且其中一个上层消失并去除初始应力和重力时，所获得的分散关系与经典的爱型波方程一致。各种技术常数的影响，如沙质参数，加强参数，孔隙度参数，Biot的重力参数，松散粘合参数，层次的初始应力和扭转表面波的相位速度上的一半空间的初始应力图表。

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